code: def __init__(self, module):
      self.prev_training_state = get_module_training_state(module)
      self.module = module
      set_module_training_off(module)
  
file_path: advertorch/advertorch/context.py
imports: from contextlib import contextmanager
label_desc: Use image node_id 1 to create a new ctx_eval object from inherited base classes: object with example: obj = ctx_eval(module)